Global Patent Index - EP 3038757 B1

EP 3038757 B1 20220608 - METHOD AND APPARATUS FOR TREATING A FEED STREAM FOR A FLOTATION DEVICE

Title (en)

METHOD AND APPARATUS FOR TREATING A FEED STREAM FOR A FLOTATION DEVICE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR BEHANDLUNG EINES ZUFUHRSTROMS FÜR EINE FLOTATIONSVORRICHTUNG

Title (fr)

PROCÉDÉ ET APPAREIL POUR TRAITER UN COURANT D'ALIMENTATION POUR UN DISPOSITIF DE FLOTTAISON

Publication

EP 3038757 B1 20220608 (EN)

Application

EP 14790720 A 20140828

Priority

  • FI 20135868 A 20130828
  • IB 2014064105 W 20140828

Abstract (en)

[origin: WO2015028958A1] The present invention provides a method and apparatus (1) for treating a feed stream (2) for a flotation device (3) comprising a mechanical agitator (30, 50) in a tank (7), the feed stream (2) comprising solid particles (10). The method comprises generating microbubbles (8) in a fluid stream (9), mixing the fluid stream with the feed stream to facilitate attachment of the microbubbles to the solid particles in the feed stream and generate bubbles (22) for attachment to microbubble-attached solid particles, and fluidly connecting the feed stream to the flotation device. The apparatus comprises a feed stream conduit (4) fluidly connected to the flotation device, a fluid stream conduit (5) fluidly connected to the feed stream conduit for conveying the fluid stream to the feed stream, and a microbubble generator (6) connected to the fluid stream conduit for generating microbubbles in the fluid stream.

IPC 8 full level

B03D 1/02 (2006.01); B03D 1/18 (2006.01); B03D 1/24 (2006.01)

CPC (source: EP FI US)

B01D 21/0084 (2013.01 - US); B01D 21/286 (2013.01 - US); B03D 1/02 (2013.01 - EP US); B03D 1/023 (2013.01 - FI); B03D 1/025 (2013.01 - FI); B03D 1/18 (2013.01 - EP FI US); B03D 1/247 (2013.01 - EP FI US)

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2015028958 A1 20150305; AU 2014313771 A1 20160324; AU 2014313771 B2 20161027; CA 2922218 A1 20150305; CA 2922218 C 20220104; CL 2016000418 A1 20161014; EA 029754 B1 20180531; EA 201690257 A1 20160831; EP 3038757 A1 20160706; EP 3038757 B1 20220608; FI 20135868 L 20150301; NZ 717343 A 20200327; PE 20160233 A1 20160510; US 10569196 B2 20200225; US 2016214036 A1 20160728; ZA 201601439 B 20200527

DOCDB simple family (application)

IB 2014064105 W 20140828; AU 2014313771 A 20140828; CA 2922218 A 20140828; CL 2016000418 A 20160224; EA 201690257 A 20140828; EP 14790720 A 20140828; FI 20135868 A 20130828; NZ 71734314 A 20140828; PE 2016000297 A 20140828; US 201414914537 A 20140828; ZA 201601439 A 20160302